The bluetooth adapter Atheros AR3012 can't be enumerated
and make the bluetooth function broken.
T: Bus=02 Lev=01 Prnt=01 Port=05 Cnt=02 Dev#= 5 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=13d3 ProdID=3362 Rev=00.02
S: Manufacturer=Atheros Communications
S: Product=Bluetooth USB Host Controller
S: SerialNumber=Alaska Day 2006
C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
The error is:
usb 2-6: device not accepting address 7, error -62
usb usb2-port6: unable to enumerate USB device
It is caused by adapter's connected port is mapped to xHC
controller, but the xHCI is not supported by the usb device.
The output of 'sudo lspci -nnxxx -s 00:14.0':
00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC [8086:9c31] (rev 04)
00: 86 80 31 9c 06 04 90 02 04 30 03 0c 00 00 00 00
10: 04 00 a0 f7 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 1f 20
30: 00 00 00 00 70 00 00 00 00 00 00 00 0b 01 00 00
40: fd 01 36 80 89 c6 0f 80 00 00 00 00 00 00 00 00
50: 5f 2e ce 0f 00 00 00 00 00 00 00 00 00 00 00 00
60: 30 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 01 80 c2 c1 08 00 00 00 00 00 00 00 00 00 00 00
80: 05 00 87 00 0c a0 e0 fe 00 00 00 00 a1 41 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 01 04 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 0f 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 03 c0 30 00 00 00 00 00 03 0c 00 00 00 00 00 00
d0: f9 01 00 00 f9 01 00 00 0f 00 00 00 0f 00 00 00
e0: 00 08 00 00 00 00 00 00 00 00 00 00 d8 d8 00 00
f0: 00 00 00 00 00 00 00 00 b1 0f 04 08 00 00 00 00
By referencing Intel Platform Controller Hub(PCH) datasheet,
the xHC USB 2.0 Port Routing(XUSB2PR) at offset 0xD0-0xD3h
decides the setting of mapping the port to EHCI controller or
xHC controller. And the port mapped to xHC will enable xHCI
during bus resume.
The setting of disabling bluetooth adapter's connected port is
0x000001D9. The value can be obtained by few times 1 bit flip
operation. The suited configuration should have the 'lsusb -t'
result with bluetooth using ehci:
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/9p, 480M
|__ Port 5: Dev 2, If 0, Class=Video, Driver=uvcvideo, 480M
|__ Port 5: Dev 2, If 1, Class=Video, Driver=uvcvideo, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
|__ Port 6: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 6: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
Signed-off-by: Kai-Chuan Hsieh <kai.chiuan@xxxxxxxxx>
---
drivers/platform/x86/asus-nb-wmi.c | 13 +++++++++++++
drivers/platform/x86/asus-wmi.c | 29 +++++++++++++++++++++++++++++
drivers/platform/x86/asus-wmi.h | 1 +
3 files changed, 43 insertions(+)
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index adecc1c..b64dc16 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -87,6 +87,10 @@ static struct quirk_entry quirk_no_rfkill_wapf4 = {
.no_rfkill = true,
};
+static struct quirk_entry quirk_asus_x550lb = {
+ .xusb2pr = 0x01D9,
+};
+
static int dmi_matched(const struct dmi_system_id *dmi)
{
quirks = dmi->driver_data;
@@ -351,6 +355,15 @@ static const struct dmi_system_id asus_quirks[] = {
},
.driver_data = &quirk_no_rfkill,
},
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X550LB",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X550LB"),
+ },
+ .driver_data = &quirk_asus_x550lb,
+ },
{},
};
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 7c093a0..8cd689a 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -156,6 +156,9 @@ MODULE_LICENSE("GPL");
#define ASUS_FAN_CTRL_MANUAL 1
#define ASUS_FAN_CTRL_AUTO 2
+#define USB_INTEL_XUSB2PR 0xD0
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
+
struct bios_args {
u32 arg0;
u32 arg1;
@@ -1080,6 +1083,29 @@ exit:
return result;
}
+static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
+{
+ struct pci_dev *xhci_pdev;
+ u32 orig_ports_available;
+ u32 ports_available = asus->driver->quirks->xusb2pr;
+
+ xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
+ NULL);
+
+ if (!xhci_pdev)
+ return;
+
+ pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
+ &orig_ports_available);
+
+ pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
+ cpu_to_le32(ports_available));
+
+ pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
+ orig_ports_available, ports_available);
+}
+
/*
* Hwmon device
*/
@@ -2084,6 +2110,9 @@ static int asus_wmi_add(struct platform_device *pdev)
if (asus->driver->quirks->wmi_backlight_power)
acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
+ if (asus->driver->quirks->xusb2pr)
+ asus_wmi_set_xusb2pr(asus);
+
if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
err = asus_wmi_backlight_init(asus);
if (err && err != -ENODEV)
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 5de1df5..cd6b108 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -51,6 +51,7 @@ struct quirk_entry {
* and let the ACPI interrupt to send out the key event.
*/
int no_display_toggle;
+ u32 xusb2pr;
};
struct asus_wmi_driver {
--
2.7.4
--
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